EP0366192B1 - Textverarbeitungsvorrichtung - Google Patents

Textverarbeitungsvorrichtung Download PDF

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Publication number
EP0366192B1
EP0366192B1 EP89202644A EP89202644A EP0366192B1 EP 0366192 B1 EP0366192 B1 EP 0366192B1 EP 89202644 A EP89202644 A EP 89202644A EP 89202644 A EP89202644 A EP 89202644A EP 0366192 B1 EP0366192 B1 EP 0366192B1
Authority
EP
European Patent Office
Prior art keywords
word
speech
recognition device
words
memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89202644A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0366192A2 (de
EP0366192A3 (de
Inventor
Werner Höllerbauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of EP0366192A2 publication Critical patent/EP0366192A2/de
Publication of EP0366192A3 publication Critical patent/EP0366192A3/de
Application granted granted Critical
Publication of EP0366192B1 publication Critical patent/EP0366192B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/28—Constructional details of speech recognition systems
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L13/00—Speech synthesis; Text to speech systems
    • G10L13/08—Text analysis or generation of parameters for speech synthesis out of text, e.g. grapheme to phoneme translation, prosody generation or stress or intonation determination

Definitions

  • the invention relates to a device for word processing, according to the preamble of the main claim.
  • a device for word processing is described in US Pat. No. 3,770,892, but the manner in which words which have been incorrectly determined by the speech recognition device can be corrected has not been discussed in detail. Since errors in the determination of words occur relatively frequently in existing devices of this type for word processing, the possibility of checking or correcting them is of particular importance.
  • the invention has set itself the goal of designing a device for word processing of the type mentioned at the outset in such a way that the words found can be checked, or words incorrectly identified, can be checked simply, quickly and reliably.
  • the device is characterized according to the features of the characterizing part of the main claim.
  • the sound signals corresponding to a text are additionally stored in a first further memory and also in correlation to these stored sound signals also to the words of the text determined by the speech recognition device and stored in a word memory in a second further time-related start markings and end markings Memory can be stored, each associated word stored in the word memory can be assigned at any time in sections to the associated sound signal or vice versa to each section of the sound signal the associated detected word.
  • the original sound signal associated with a word to be checked or corrected which in its representation has been marked with the display device by the computer, can be acoustically heard by the user of the device, as a result of which he is able to correctly correct the original word in question can be recognized and, if necessary, entered into the device in a corrected form with the keyboard.
  • Another possibility is to carry out a continuous check of the detected words of the text represented by the display device by continuously and acoustically reproducing the sound signals stored in the first further memory, with the associated detected words being continuously marked in their representation by the display device from the computer are, so that the user of the device is constantly referred to the word found, for which he is currently listening to the associated original sound signal, whereby he is also able to recognize words in need of correction easily and reliably.
  • a device according to the invention which is additionally provided with the features of the preamble of claim 2, is preferably characterized by the features of the characterizing part of this claim.
  • a device according to the invention can also be characterized by the features of claim 3. In this way, not just individual corrected words, but the whole already corrected text included in a learning process of the device, whereby not only the error rate of incorrectly detected words is continuously reduced in the course of the use of the device, but also a rapid adaptation of the device to the characteristic pronunciation of a particular speaker or to typical text sequences which a particular one Speaker often used is achieved.
  • 1 denotes a speech recognition device, to which the sound signals corresponding to a text are supplied in the form of electrical signals at their input 2 from an input 3 of the text processing device, which sound signals originate, for example, directly from a microphone or from a dictation machine used as a buffer can be played back.
  • These electrical signals can be either analog signals or digital signals, the latter already in coded form, depending on the type of speech recognition device used, for which a number of embodiments are known which can be used in the present case.
  • the speech recognition device 1 is controlled by a computer 4, which also takes over the control of the entire text processing device.
  • the electrical signal arrives in the usual way at an acoustic analyzer 5, which detects outstanding features of this signal, which characterize the same, such as pole points of energy concentrations within the frequency spectrum, which are then stored in a feature memory 6.
  • the actual word recognition device 7 of the speech recognition device 1 is fed from this feature memory 6, which is also connected to a series of memories which enable it to identify individual words.
  • These memories include, in the usual way, a language model memory 8 for storing probable sequences of words of a certain speaker or also of several certain speakers, a phonetic memory 9 for storing the possibly also speaker-related laud compositions of the words which the speech recognition system knows, and a pronunciation feature memory 10 for storing parameters relating to the characteristic pronunciation of a certain speaker or also several certain speakers.
  • the speech recognition device 1 also has a learning device 11 which works directly with the word recognition device 7 and the feature memory 6 and also has access to the aforementioned memories 8, 9 and 10.
  • the features obtained with the speech recognition device 1 from the sound signal originating from a specific speaker of a word and stored in the feature memory 6 are fed by the learning device 11 in comparison with it, for example speech-related parameters stored in the memories 8, 9 and 10 and the word, which is also supplied to it by the computer 4 and belongs to the sound signal in question, and is stored in the form of speaker-related parameters in the memories 8, 9 and 10 of the speech recognition device, where they are then available to the word recognition device 7.
  • the individual words of the entire text contained in the sound signals can be recognized, which are then stored as digital signals in a word memory 12, where they in turn are available for further processing in a processing device (4, 13, 14, 17) stand and can be fed via the computer 4 to a display device 13 or a printer 14.
  • a processing device (4, 13, 14, 17) stand and can be fed via the computer 4 to a display device 13 or a printer 14.
  • the text contained in the sound signals can be displayed directly by means of the display device 13 as text consisting of individual words, where it is then available for checking or correction, which is necessary because such speech recognition devices usually have a certain error rate in that regard that individual words or groups of words are not correctly identified and are therefore displayed incorrectly.
  • the sound signals supplied to the input 3 of the text processing device in the form of electrical signals are stored in a first further memory 15.
  • a first further memory 15 There are various possibilities for the manner in which the sound signals are stored in the first further memory 15, depending on the design of this further memory.
  • a tape recorder on which the sound signals are stored as analog signals can serve as such a first additional memory.
  • a digital memory can also be used as such a first additional memory, to which the sound signals are fed after their digitization or coding, such memories offering the advantage of faster access to the memory contents.
  • This can be, for example, either a disk storage or a solid-state storage.
  • the memory of a central dictation system can also serve as such a first additional memory.
  • the speech recognition device 1 itself to be supplied with the input signal to be supplied to its input 2 from an output of such a first further memory 15.
  • the individual words ascertained by the speech recognition device and stored in the word memory 12 are assigned start markings and end markings which are related in time to the audio signals stored in the first further memory 15.
  • each word found is delimited by an initial mark and an end mark, and the end mark of a word can simultaneously be the start mark of the next word.
  • a time count can be made during the speech recognition process, for example with the help of the clock signal from the computer 4, which successively defines the individual time segments between the individual ones Findings of words occur.
  • the initial markings and end markings of the individual ascertained words obtained in this way are now stored in a second further memory 16, which is connected to the word recognition device 7, with access to this second further memory 16 via the computer 4.
  • the computer 4 also has access to the first further memory 15, in which the sound signals are stored.
  • the computer 4 can be used to establish a correlation with the audio signal stored in the first further memory 15 and associated with this word, which is stored in the second further memory 16, and then marked by the computer 4 Displayed 13 shown determined word, for example with a cursor or by underlining identifiable and at the same time the associated sound signal can be acoustically reproduced.
  • a single word of the same can be marked in a controlled manner from the keyboard 17 and the computer 4, whereupon with the help of the computer 4 the initial marking belonging to the marked word and stored in the second further memory 16 and end markings are determined and, depending on these markings, the associated sound signal stored in the first further memory 15 is interrogated and, for example, reproduced acoustically with a loudspeaker 18, such a reproduction being able to take place once or several times in succession.
  • the user of the device immediately has the possibility of marking the device in question Listen to the word-associated sound signal and thus determine whether the word in question has been correctly or incorrectly determined by the speech recognition device 1.
  • the user of the device can then use the keyboard 17 to replace the incorrectly identified word with the correct word.
  • the user of the device thus continuously hears the spoken text and at the same time is referred to the word ascertained by the speech recognition device by identifying it in the text form shown.
  • a text control or a text correction can be carried out simply and reliably through these different possible uses of the described text processing device, after which the finished correct text can then be printed out with the printer 14.
  • Another possibility is to use the sound signals stored in the first further memory 15 in the course of such learning processes and to determine the relevant features in each case anew using the speech recognition device 1 and to store them again in the feature memory 6, so that only a lower storage capacity for the feature memory 6 is required.
  • the input 2 of the speech recognition device 1 can be switched from the input 3 of the device to an output of the first further memory 15 using a switch 19.
  • the computer 4 then again has access to each sound signal section stored in the first further memory 15 which belongs to a relevant word ascertained by the speech recognition device.
  • the learning device 11 in the memories 8, 9 and 10 of the speech recognition device 1 carries out such changes or additions to the stored speaker-related parameters that, related to the speaker in question, a further learning process takes place in the speech recognition device 1, which causes that, if in a sound signal of such a word occurs again in the future, this is then more likely to be immediately correctly identified by the speech recognition device 1, and the error rate of such a device for word processing is thus gradually reduced further and further.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Document Processing Apparatus (AREA)
  • Machine Translation (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Devices For Executing Special Programs (AREA)
  • Feed For Specific Animals (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Communication Control (AREA)
  • Saccharide Compounds (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
EP89202644A 1988-10-25 1989-10-19 Textverarbeitungsvorrichtung Expired - Lifetime EP0366192B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0264788A AT390685B (de) 1988-10-25 1988-10-25 System zur textverarbeitung
AT2647/88 1988-10-25

Publications (3)

Publication Number Publication Date
EP0366192A2 EP0366192A2 (de) 1990-05-02
EP0366192A3 EP0366192A3 (de) 1991-03-13
EP0366192B1 true EP0366192B1 (de) 1995-06-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89202644A Expired - Lifetime EP0366192B1 (de) 1988-10-25 1989-10-19 Textverarbeitungsvorrichtung

Country Status (10)

Country Link
US (1) US5031113A (xx)
EP (1) EP0366192B1 (xx)
JP (1) JP3263392B2 (xx)
KR (1) KR0135975B1 (xx)
AT (2) AT390685B (xx)
AU (1) AU616807B2 (xx)
CA (1) CA2001164C (xx)
DE (1) DE58909293D1 (xx)
ES (1) ES2075848T3 (xx)
HK (1) HK199496A (xx)

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Also Published As

Publication number Publication date
KR0135975B1 (ko) 1998-05-15
HK199496A (en) 1996-11-08
AT390685B (de) 1990-06-11
EP0366192A2 (de) 1990-05-02
ES2075848T3 (es) 1995-10-16
DE58909293D1 (de) 1995-07-20
ATA264788A (de) 1989-11-15
AU616807B2 (en) 1991-11-07
US5031113A (en) 1991-07-09
CA2001164C (en) 2000-11-28
CA2001164A1 (en) 1990-04-25
AU4367289A (en) 1990-05-03
ATE123893T1 (de) 1995-06-15
EP0366192A3 (de) 1991-03-13
JP3263392B2 (ja) 2002-03-04
KR900006856A (ko) 1990-05-09
JPH02163819A (ja) 1990-06-25

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